EUC TIP 91: Best Practices with Snapshots with RDS

All reference VMs must be generalized before they can be used to provision or recreate a virtualized desktop

As best practice, start with a snapshot of an ungeneralized Windows 7 or Windows 8 virtual machine

Generalize, shutdown, and create new snapshot
In the virtual machine, run the following command from Windows\System32\Sysprep directory
Sysprep /oobe /generalize /mode: vm

The switch Mode:vm only detects the enumerated and synthetic devices that are possible and skips on the physical layer checks. Only works with Windows 8 and 2012

The ‘now’ snapshot reflecting the generalized state will be used to (re)create the virtual desktops

When updating a VM, revert to ungeneralized snapshot, delete generalized snapshot, update VM, generalize, shutdown. and snapshot

I think this process can eliminate the need for a KMS server with RDS but not 100% sure, let me know if you have the answer.

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